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Kota mataram,
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INDONESIA
Jurnal Biologi Tropis
Published by Universitas Mataram
ISSN : 14119587     EISSN : 25497863     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Biologi Tropis (ISSN Cetak 1411-9587 dan ISSN Online 2549-7863) diterbitkan mulai tahun 2000 dengan frekuensi 2 kali setahun oleh Program Studi Pendidikan Biologi PMIPA FKIP Universitas Mataram, berisi hasil penelitian dan ulasan Ilmiah dalam bidang Biologi Sains.
Arjuna Subject : -
Articles 51 Documents
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Search results for , issue "Vol. 22 No. 3 (2022): July - September" : 51 Documents clear
Monascus sp. Pigment Potency as Simple Preservative in Food Ingredients Wahyu Aji Mahardhika; Maulida Aqlinia; Delfiani Anggias Putri; Firda Sri Efendi; Vincentia Fenice Angger Maherani; Sri Listiyowati
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i3.3761

Abstract

Everyday foodstuffs such as tofu, chicken, and fish are ingredients that have a short shelf life if stored outdoors or in the open air. The fungus Monascus sp. is a fungus whose pigment is often used in giving color to food. This study aims to determine the potential of Monascus sp pigment isolated from commercial red rice (Angkak) as a preservative in tofu, chicken, and fish at room temperature. The methods used included isolation of the fungus Monascus sp from commercial red rice (Angkak), macroscopic and microscopic morphological characterization, solid fermentation using rice, harvesting pigments with water solvent, and pigment resistance tests on tofu, chicken meat, and fish. The results obtained from the application of the crude extract of the Monascus sp. pigment in fish survived for two days, chicken meat lasted up to three days, and tofu lasted four days. Each experiment had different results during the organoleptic test and compared to a positive control, namely turmeric, proving that turmeric was still better at resisting food spoilage. This research needs to be investigated further regarding the potential if the pure extract of the Monascus sp pigment is used.
Spawning activity of Oryzias woworae Parenti & Hadiaty 2010 with the Suplementation Spirulina Meal in the Diet Mas Bayu Syamsunarno; Mustahal; Achmad Noer Faqih; Achmad Noerkhaerin Putra; Muh. Herjayanto
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i3.3777

Abstract

Spirulina platensis is a feed additive that can improve the reproductive performance of fish. It has never been given to the endemic fish Oryzias woworae which can lay eggs every day. Therefore, a study was conducted that aims to examine spawning activities related to egg-laying behavior, number of eggs, and egg diameter of O. woworae. The study used a sex ratio of 1♂:1♀ in spawning. The test feeds were commercial feed (Feng Li 1) or 0% without spirulina (treatment A), the addition of spirulina 5% (treatment B), 10% (treatment C), and 20% (treatment D). Observations were made every hour for 6 days. The spawning temperature was controlled at a value of 26.6±0.2°C. The results showed differences in the behavior of O. woworae in releasing eggs on spawning days. Giving spirulina causes the behavior of releasing eggs to occur at intervals of 1-3 hours, while without spirulina, it only occurs 1 hour on spawning days. The highest number of eggs was produced by giving spirulina 20% with a diameter range of 1.35-1.37 mm. The presence of a small egg diameter in the 20% spirulina treatment indicated that an increase in the number of eggs affected the ovaries capacity, so the diameter decreased. However, the average diameter of 20% of spirulina eggs was still the same as without spirulina administration. The stable temperature at 26.6±0.2°C caused the spawning activity of O. woworae to only occur in the morning between 07:00-09:00.
Hibiscus Hibiscus Sheet Mask As A Natural Skin Care Alternative Kristin Sangur; Nata Adinda Br Kaban
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i3.3789

Abstract

Hibiscus sheet mask is a natural skin care solution made from hibiscus flower (Hibiscus rosa-sinensis L.). The purpose of this study was to analyze the physical, chemical, and organoleptic of hibiscus sheet mask as an alternative to natural skin care. This study used a red and layered hibiscus flower crown. Extracts were made using the maceration method. The results of the flower extract are then made in various variations of mask formulas. The Hibiscus sheet mask was then analyzed by 10 panelists for its physical, chemical and organoleptic. The results showed that the higher the concentration of hibiscus flower extract, the more it produced a mask that was red in color, had a hibiscus aroma and a thick texture. The higher the concentration of hibiscus flower extract, the more the mask has a low pH. Meanwhile, the panelists prefer the hibiscus sheet mask with the 75% formula (F3). Thus, the hibiscus sheet mask can be accepted by the panelists.
Isolation of Dunaliella salina Microalgae from Pari Island, Jakarta, Indonesia Andri Hutari; Ranti An Nisaa; Suhendra Suhendra; Husnin Nahry Yarza; Devi Anugrah
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i3.3804

Abstract

Dunaliella salina is a microalga from the Chlorophyta group which is reported to be found in mangrove forests. These microalgae are reported to have economic value as a producer of beta carotene, astaxanthin, and EPA fatty acids. The microalga was isolated from Pari Island, Jakarta. Sampling by streak plate method. This study aimed to obtain Dunaliella salina isolates for further exploration. The results obtained were, that three pure isolates MKA1, MKA2, and MKA3, were successfully purified. The three isolates showed oval-ovoid morphology and orange-pink pigmentation of the culture. Cultivation using seawater, glucose (10 g/L) and yeast extract (3 g/L) produced biomass of about 2.3 g/L and further optimization needs to be explored.
Effect of The Addition of Hyacinths as Feed to Increase The Production of Earthworms (Lumbricus rubellus) Rohani Rohani; Karnan Karnan; Mohammad Liwa Ilhamdi
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i3.3816

Abstract

Water hyacinth (Eichhornia crassipes) is one of Indonesia's wild plants which is considered a weed because of its rapid growth that can cause environmental problems. Generally, water hyacinth control is carried out physically/conventionally by throwing it away or burning it, causing new environmental problems. Water hyacinth has a high organic matter content, therefore water hyacinth can be used as an alternative feed to increase the production of earthworms. This study aims to determine the effect of adding water hyacinth as feed to increasing the production of earthworms (Lumbricus rubellus).This study aims to determine the effect of adding water hyacinth as feed to increasing the production of earthworms (Lumbricus rubellus). The research was conducted in the Dasan Dao hamlet, Ranggagata Village, Southwest Praya District, Central Lombok Regency, in the researcher's private house for 60 days. This type of research is an experimental research. The research design used was a completely randomized design with 4 treatments and 4 replications. Treatments were P0 (0 grams of water hyacinth), P1 (50 grams of water hyacinth), P2 (100 grams of water hyacinth), P3 (150 grams of water hyacinth). Parameters observed were the number and weight of earthworms. The results showed that the treatment had a significant effect on the weight and number of earthworms (P<0.05). The results of the treatment on the number of earthworms P0;P1;P2;P3 were 84;93.75;117.25;127.5 and the weight of earthworms was 85;102.5;118.75;124.75. The highest number and weight of earthworms were found in the P3 treatment (150 g of water hyacinth). The conclusion of this research is the addition of water hyacinth as feed can increase the number and weight of earthworms.
Pollen collected by stingless bees Tetragonula laeviceps (Smith, 1857) (Hymenoptera: Apidae: Meliponini) from Central Sulawesi Masrianih Masrianih; Fatmah Dhafir; Manap Trianto
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i3.3885

Abstract

The diversity of pollinating insects is used as conservation management. Pollen is gametophyte from male which can give characteristics to its offspring. The pollen carried by bees can be used as an identification of feed favored by bees. This study aims to identity pollen derived from the legs of stingless bees based on the color morphological characteristics of the pollen. The methods include color identification of pollen collected by stingless bees, pollen extraction, acetolysis, and pollen identification. Pollen with the same species at the study site has a color that is not much different. Stingless bees take pollen based on the size and distance of the plant to the hive. Smell and color as a secondary binder for stingless bees. Different plant pollen species can also be influenced by the protein requirements of each stingless bee colony. It can recognize the presence of flowering plants aroud the hive. The size of pollen can affect the bees in taking plant pollen.  
The Structure of Bivalvian Community in The Coast of Elak Elak Beach, West Sekotong, West Lombok, West Nusa Tenggara As An Enrichment of Invertebrate Animal Material for Senior High School Students Inda Wahyuni; Didik Santoso; I Putu Artayasa
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i3.3905

Abstract

Elak elak beach has a sea and a coast with a substrate texture that is very suitable as a habitat for Mollusca including bivalves. Bivalves have many roles for the environment, especially in providing food for various other species in the food chain and can be used to determine water quality. This study aims to determine the community structure and distribution pattern of bivalves in Elak Elak Beach and to see student responses to booklets. The method used in this research is the line transect and quadratic method. The results of the study of the bivalves class molluscs found in the Elak Elak Coastal Coast consisted of 11 species belonging to 7 families. The species consists of Anadara gubernaculum, Anadara granosa, Gafrarium dispar, Glycymeris pectunculus, Liconcha ornata, Lucinoma heroica, Mactra grandis, Mactra nitida, Mactra ornata, Donax faba and Trachycardium flavum. The relative abundance reaches 40% where the highest abundance of bivalves is species Mactra grandis with a relative abundance value of 39.39%. The categories of diversity (H') are medium and uniformity (E) is high, and inversely proportional to the dominance value (C) is low. The structure of the bivalves community based on abundance, diversity, uniformity and dominance that has been studied shows the condition of the West Sekotong Elak Elak Beach, West Lombok district, it can be concluded that the community structure is still in normal condition. The distribution pattern of Bivalves on Elak Elak Beach, West Sekotong is divided into 2 types, namely there are uniform and clustered which are seen based on the calculated value of the Morisita dispersion index. Students' responses to booklets are that students respond very well and students are also very positive in responding to booklets as material enrichment about invertebrate animals for senior high school students.
Growth and Survival Rate of Striped Eel Catfish Fingerlings (Plotosus lineatus) at Different Sizes: Growth and Survival Rate of Striped Eel Catfish Fingerlings Asriyana Asriyana; Halili Halili; Abdul Muis Balubi; Asnawati Asrari; Raudhatul Mahdaniah
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i3.3913

Abstract

Striped eel catfish (Plotosus lineatus) are fish that live in coastal waters but there are also those that live in river mouths. This study aimed to determine the growth and survival rate of striped eel catfish fingerlings at different sizes in controlled media. This study used a completely randomized design (CRD) with three treatments (different sizes) and three replications, so there were nine experimental containers. The treatments used were treatment A: maintenance of fingerlings size (3.5-4.0 cm); treatment B: maintenance of fingerlings size (4.9-5.6 cm); and treatment C: maintenance of fingerlings size (7.0-8.0). During maintenance, absolute length gain, relative growth rate, specific growth rate, and fingerlings survival were determined. The results showed that fingerling size had a significant effect on growth performance and survival. Fingerlings measuring 4.9-5.6 cm had the highest growth performance, while fingerlings measuring 7.0-8.0 cm showed the highest survival rate than other sizes. This indicates that the fingerlings measuring 4.9-5.6 cm and 7.0-8.0 cm are suitable for aquaculture.
Identification of Apis dorsata Bee Nesting Plants in Natural Forest of Lalang Village Sanggau Regency Kiki Supriyadi; Gusti Hardiansyah; Fathul Yusro; Yeni Mariani
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i3.3917

Abstract

Apis dorsata is known as a forest bee that is very productive in producing honey. These bees can make nest combs only by relying on tree branches or branches. This study aims to identify the type of plant where Apis dorsata nests in the natural forest of Lalang Village, Meliau District, Sanggau Regency. This research was conducted using a survey method through interviews with respondents and site surveys to identify and measure tree height, tree diameter, and branch-free stems of the plant species where Apis dorsata bees nest. The data obtained is further analyzed and the results are presented in the form of tables and graphs. The results of our study found that there were 16 species of plants belonging to 8 families as Apis dorsata beehives. The family and names of these plants are Dipterocarpaceae (Anisoptera marginata, Shorea laevis, Dryobalanops lavevis, Dryobalanops beccarii, Anisoptera megistocarpa, Shorea parvifolia, Shorea leprosula), Fabaceae (Inga sp, Millettia borneensis, Koompassia sp, Koompassia excelsa), Apocaceae (Alstonia pneumatophora), Datiscaceae (Octomeles sumatrana), Lauraceae (Litsea sp), Malvaceae (Pterocymbium tubulatum), and Moraceae (Artocarpus sp). The dominant family is Dipterocarpaceae. The total height of Apis dorsata honeycomb trees is the most dominant (75%) in Lalang Village ranging from ±65-90 m, 10 species of sympodial branching (62.5%), and 68.75% of the trunk diameter found ranged from 50-159 cm.
Analisys of lead (Pb) Heavy Metal Content in Climbing Perch Fish (Anabas testudineus) Derived from Rawa Taliwang Lake, West Sumbawa Regency 2021 Lili Mantika Shoalichin; Khairuddin Khairuddin; M. Yamin
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v22i3.3923

Abstract

Rawa Taliwang Lake as an Nature Park in West Sumbawa Regency have an economic value for the fishermens and fish traders from Climbing Perch fish (Anabas testudinesu). Consuming Heavy metals content in climbing perch fish will be damaged human body. This research aims to analysis of lead (Pb) heavy metal content in climbing perch fish (Anabas testudineus) derived from Rawa Taliwang Lake, West Sumbawa Regency 2021. This research was conducted for two months, starting from September - October 2021. Sampling was carried out by purposive sampling method at 2 research stations. Fish samples were taken are 2 fishes from each station using traditional rattan fish trap. The fish species taken were climbing perch fish. The research sample was then analyzed in the West Nusa Tenggara Health, Testing and Calibration Laboratory. The data analysis was carried out by taking muscle tissue from headsnake fish and then analyzing the content of heavy metal in the from lead using AAS (Atomic Absorbtion Spectrophotometry). The measurement result showed that heavy metal content of lead in climbing perch fish from Rawa Taliwang Lake 0,1 mg/kg (ppm) or still under the maximum standard  by Food and Drug Supervisory Agency (BPOM) No.5 of 2018 concerning the Maximum Limit of Heavy Metal Contamination in Processed Food which is 0,2 mg/kg.

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